EPYC 9555 vs A8-7650K

Primary details

Comparing A8-7650K and EPYC 9555 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	1927	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	0.24	no data
Market segment	Desktop processor	Server
Series	AMD A-Series (Desktop)	no data
Power efficiency	1.96	no data
Architecture codename	Kaveri (2014−2015)	Turin (2024)
Release date	7 January 2015 (9 years ago)	10 October 2024 (recently)
Launch price (MSRP)	$152	$9,826

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

A8-7650K and EPYC 9555 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	4 (Quad-Core)	64 (Tetrahexaconta-Core)
Threads	4	128
Base clock speed	3.3 GHz	3.2 GHz
Boost clock speed	3.8 GHz	4.4 GHz
L1 cache	256 KB	80 KB (per core)
L2 cache	4096 KB	1 MB (per core)
L3 cache	no data	256 MB (shared)
Chip lithography	28 nm	4 nm
Die size	245 mm2	8x 70.6 mm2
Maximum core temperature	72 °C	no data
Number of transistors	2,411 million	66,520 million
64 bit support	+	+
Windows 11 compatibility	-	no data
Unlocked multiplier	+	-

Compatibility

Information on A8-7650K and EPYC 9555 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	2
Socket	FM2+	SP5
Power consumption (TDP)	95 Watt	360 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A8-7650K and EPYC 9555. You'll probably need this information if you require some particular technology.

Instruction set extensions	SSE1-4a, AVX, AES, FMA4, VT	no data
AES-NI	+	+
FMA	+	-
AVX	+	+
FRTC	+	-
FreeSync	+	-
DualGraphics	+	-
TrueAudio	+	-
PowerNow	+	-
PowerGating	+	-
Out-of-band client management	+	-
VirusProtect	+	-
HSA	+	-
Precision Boost 2	no data	+

Virtualization technologies

Virtual machine speed-up technologies supported by A8-7650K and EPYC 9555 are enumerated here.

AMD-V	+	+
IOMMU 2.0	+	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by A8-7650K and EPYC 9555. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR3-2133	DDR5
Max memory channels	2	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	AMD Radeon R7 Graphics	N/A
iGPU core count	6	no data
Number of pipelines	384	no data
Enduro	+	-
Switchable graphics	+	-
UVD	+	-
VCE	+	-

Graphics interfaces

Available interfaces and connections of A8-7650K and EPYC 9555 integrated GPUs.

DisplayPort	+	-
HDMI	+	-

Graphics API support

APIs supported by A8-7650K and EPYC 9555 integrated GPUs, sometimes API versions are included.

DirectX	DirectX® 12	no data
Vulkan	+	-

Peripherals

Specifications and connection of peripherals supported by A8-7650K and EPYC 9555.

PCIe version	3.0	5.0
PCI Express lanes	16	128

Pros & cons summary

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Recency	7 January 2015	10 October 2024
Physical cores	4	64
Threads	4	128
Chip lithography	28 nm	4 nm
Power consumption (TDP)	95 Watt	360 Watt

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